how to inject b12 shot at home give yourself a Best Vitamin B12 Injection Site:

Im happy there are no side effects

These may include: ( 4 ) Fatigue or lack of energy Brain fog or trouble concentrating Irritability or mood swings Pale skin or shortness of breath Tingling in the hands and feet Difficulty walking or staggering Anemia Swollen or inflamed tongue A B12 deficiency in men may also contribute to low testosterone, weight gain, and poor exercise recoverymaking it a hidden factor in many mens health concerns

When food-derived energy chronically exceeds energy expenditure, the excess calories are stored as triglycerides in adipose tissue

The most common B12 injections are hydroxocobalamin and cyanocobalamin